Sefton Coast Wildlife

Meadow Brown

Maniola jurtina

UK Green ListEasy to see📍 Ainsdale NNR
Season
June–September. One generation. Peak July.
Best time of day
Any time — more active than most butterflies in overcast conditions
Sefton Coast
Abundant in dune grassland throughout the Sefton Coast in summer
UK population
Very common and widespread; Britain's most abundant butterfly

Tap image to enlarge · Wikimedia Commons

Overview

The Meadow Brown is Britain's most abundant butterfly and the default large brown of Sefton Coast dune grassland. Males are darker and more uniform; females are more orange-centred. It's unusual in that it remains active in cloudy, even cool conditions when other butterflies have stopped flying. In July, the dune grassland at Ainsdale can hold extraordinary numbers. The single eye spot near the forewing tip is always present.

At a Glance

OrderLepidoptera
FamilyNymphalidae
HabitatDune grassland · Rough grassland · Hedgerow · Woodland edge
DietAdults: Bramble, thistles, Ragwort. Larvae: various grasses.
UK populationVery common and widespread; Britain's most abundant butterfly
Sefton CoastAbundant in dune grassland throughout the Sefton Coast in summer
ConservationUK Green List

Where to See It

Dune grassland throughout the Sefton Coast — the most abundant butterfly overall in summer.

Identification

Medium-large butterfly. Brown with orange forewing patch containing black eye spot with white pupil. Female more orange than male. Underside buff-grey with hindwing eye spot. Active in cloud — unusual.

Viewing & Photography Tips

Walk any dune grassland in July. The most numerous butterfly — present everywhere on warm or cool days.

Conservation Status

UK Green List

This species has a favourable conservation status in the UK and remains an important part of Sefton Coast biodiversity.

Frequently Asked Questions

Why does the Meadow Brown fly in cloudy weather?

Unlike most butterflies which require warmth from sunshine to fly, Meadow Browns can remain active in cool, overcast conditions. Their dark coloration helps them absorb heat even from diffuse light. This adaptation allows them to feed and mate across a wider temperature range than sunshine-dependent species, giving them longer daily activity periods.

Related Species

Plan your visit to the Sefton Coast

Marshside RSPB, Formby pinewoods, Ainsdale NNR — practical guides to getting there, what to bring, and the best spots for each season.